Preparation of large ultra-thin free-standing polymer films
US10131754B2 · kind B2 · utility
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Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making large ultrathin free-standing polymer films without use of a sacrificial layer includes the steps of providing a substrate, applying a polyelectrolyte material to said substrate, applying a polymer material onto said substrate and onto said polyelectrolyte material, and directly delaminating said polymer material from said substrate and said polyelectrolyte to produce the ultrathin free-standing polymer film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.